/**
 * Copyright 2008-2009 HAN.BIFANG
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package han.bifang.business.dao;

import han.bifang.common.entity.SoaApplication;
import han.bifang.common.exception.BifangErrorCode;
import han.bifang.common.exception.BifangException;
import han.bifang.common.persist.dao.DaoManager;
import han.bifang.common.persist.tx.Tx;
import han.bifang.common.persist.tx.TxManager;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * @Author Kent
 */
public class ApplicationDao {
	private static Log logger = LogFactory.getLog(ApplicationDao.class);

	public static List getAllApps() throws BifangException {
		Tx tx = null;

		try {
			tx = TxManager.start();
			String sql = "from SoaApplication ";
			List domains = DaoManager.getDao().find(sql);
			tx.commit();

			return domains;

		} catch (Throwable e) {
			logger.error("ApplicationDao.getAllApps()", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"getAllApps() error", e);
		} finally {
			tx.end();
		}

	}

	public static void createApp(SoaApplication d) throws BifangException {
		Tx tx = null;
		try {
			tx = TxManager.start();
			String hql = "from SoaApplication s where s.code = ?";
			List o = DaoManager.getDao().find(hql, d.getCode());
			if(o.size() > 0 ){
				throw new BifangException(BifangErrorCode.APPLICATION_CODE_EXISTS_ERROR,
						"Application code " + d.getCode() + " exists");
			}
			DaoManager.getDao().save(d);
			DaoManager.getDao().flush();
			tx.commit();
		} catch (Throwable e) {
			logger.error("ApplicationDao.createApp()", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"createApplication() error", e);
		} finally {
			tx.end();
		}

	}

	public static void modifyApp(SoaApplication d) throws BifangException {
		Tx tx = null;
		try {
			tx = TxManager.start();
			String hql = "from SoaApplication s where s.code = ?";
			List o = DaoManager.getDao().find(hql, d.getCode());
			if(o.size() > 0 ){
				SoaApplication a = (SoaApplication)o.get(0);
				if(! a.getId().equals(d.getId())){
					throw new BifangException(BifangErrorCode.APPLICATION_CODE_EXISTS_ERROR,
						"Application code " + d.getCode() + " exists");
				}
			}
			DaoManager.getDao().merge(d);
			DaoManager.getDao().flush();
			tx.commit();
		} catch (Throwable e) {
			logger.error("ApplicationDao.modifyApp()", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"modifyApp() error", e);
		} finally {
			tx.end();
		}

	}

	public static void removeApp(SoaApplication d) throws BifangException {
		Tx tx = null;
		try {
			tx = TxManager.start();
			DaoManager.getDao().delete(d);
			DaoManager.getDao().flush();
			tx.commit();
		} catch (Throwable e) {
			logger.error("ApplicationDao.removeApp()", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"removeApp() error", e);
		} finally {
			tx.end();
		}

	}

	public static void removeApp(String id) throws BifangException {
		Tx tx = null;
		try {
			tx = TxManager.start();
			Object o = DaoManager.getDao().get(SoaApplication.class, id);
			DaoManager.getDao().delete(o);
			DaoManager.getDao().flush();
			tx.commit();
		} catch (Throwable e) {
			logger.error("ApplicationDao.removeApp(String)", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"removeApp(String) error", e);
		} finally {
			tx.end();
		}

	}

	public static SoaApplication getApp(String id) throws BifangException {
		Tx tx = null;
		try {
			tx = TxManager.start();
			SoaApplication o = (SoaApplication) DaoManager.getDao().get(
					SoaApplication.class, id);

			tx.commit();
			return o;
		} catch (Throwable e) {
			logger.error("ApplicationDao.getApp(String)", e);
			tx.rollback();
			throw new BifangException(BifangErrorCode.DB_ERROR,
					"getApp(String) error", e);
		} finally {
			tx.end();
		}

	}

}
